22211573380 has 48 divisors (see below), whose sum is σ = 49465382400. Its totient is φ = 8348917248.

The previous prime is 22211573347. The next prime is 22211573381. The reversal of 22211573380 is 8337511222.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (22211573381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167821 + ... + 269419.

It is an arithmetic number, because the mean of its divisors is an integer number (1030528800).

Almost surely, 2^22211573380 is an apocalyptic number.

22211573380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22211573380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24732691200).

22211573380 is an abundant number, since it is smaller than the sum of its proper divisors (27253809020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22211573380 is a wasteful number, since it uses less digits than its factorization.

22211573380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102268 (or 102266 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 22211573380 in words is "twenty-two billion, two hundred eleven million, five hundred seventy-three thousand, three hundred eighty".